store_rebuild.h

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/*
 * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
/* DEBUG: section 20    Store Rebuild Routines */
 
#ifndef SQUID_SRC_STORE_REBUILD_H
#define SQUID_SRC_STORE_REBUILD_H
 
#include "store_key_md5.h"
 
class MemBuf;
 
class StoreRebuildData
{
public:
    void updateStartTime(const timeval &dirStartTime);
 
    bool started() const { return startTime.tv_sec > 0; }
 
    // when adding members, keep the class compatible with placement new onto a
    // zeroed shared memory segment (see Rock::Rebuild::Stats usage)
 
    int objcount = 0;       /* # objects successfully reloaded */
    int expcount = 0;       /* # objects expired */
    int scancount = 0;      /* # entries scanned or read from state file */
    int clashcount = 0;     /* # swapfile clashes avoided */
    int dupcount = 0;       /* # duplicates purged */
    int cancelcount = 0;    /* # SWAP_LOG_DEL objects purged */
    int invalid = 0;        /* # bad lines */
    int badflags = 0;       /* # bad e->flags */
    int bad_log_op = 0;
    int zero_object_sz = 0;
    int64_t validations = 0; 
    timeval startTime = {}; 
};
 
class Progress
{
public:
    Progress(const int64_t stepsCompleted, const int64_t stepsTotal):
        completed(stepsCompleted), goal(stepsTotal) {}
 
    void print(std::ostream &os) const;
 
    int64_t completed; 
    int64_t goal; 
};
 
inline std::ostream &
operator <<(std::ostream &os, const Progress &p)
{
    p.print(os);
    return os;
}
 
void storeRebuildStart(void);
void storeRebuildComplete(StoreRebuildData *);
void storeRebuildProgress(int sd_index, int total, int sofar);
 
bool storeRebuildLoadEntry(int fd, int diskIndex, MemBuf &buf, StoreRebuildData &counts);
 
bool storeRebuildParseEntry(MemBuf &buf, StoreEntry &e, cache_key *key, StoreRebuildData &counts, uint64_t expectedSize);
 
#endif /* SQUID_SRC_STORE_REBUILD_H */